I've been 'bent since Sept. '07. What I've learned since then is...
There are many varied styles of recumbent bikes and trikes. You deserve to test ride as many of them as you can.
You also need to expect that the purchase of one recumbent will most likely lead to the purchase of a another sooner or later. They are that much fun. I actually own SWB and LWB recumbents. I end up riding whichever one suits my mood an any particular day.
I've also discovered that I still enjoy riding my upright bikes also. You may or may not as we are all individuals with our own personal opinions.
There is a wealth of knowledge on this forum. Another good place to seek information and share cycling experiences is this Recumbent specific forum (in case you haven't already visited there)...
http://www.bentrideronline.com/
Good hunting and be sure to let us know how you made out with your quest.